.page_index {

  .headers {
    text-align: center;
    padding: 60px 180px;
    overflow: hidden;
    /** 这里直接复制bootstrap样式 */
    text-shadow: 0 1px 0 rgba(0,0,0,.1);
    background-color: #6f5499;
    background-image: -webkit-gradient(linear,left top,left bottom,from(#563d7c),to(#6f5499));
    background-image: -webkit-linear-gradient(top,#563d7c 0,#6f5499 100%);
    background-image: -o-linear-gradient(top,#563d7c 0,#6f5499 100%);
    background-image: linear-gradient(to bottom,#563d7c 0,#6f5499 100%);
    filter: progid:DXImageTransform.Microsoft.gradient(startColorstr="#563d7c", endColorstr="#6F5499", GradientType=0);
    background-repeat: repeat-x;

    h1 {
      color: white;
      font-size: 48px;
      font-weight: 400;
    }

    p {
      text-align: justify;
      color: white;
      font-size: 16px;
      font-weight: 400;
      line-height: 30px;
      text-indent: 2em;
    }
  }

  .navigation-webgl {
    padding: 0 180px;
    margin: 60px 0;
    overflow: hidden;
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-start;
  }

  .navigation-babylon {
    padding: 0 180px;
    margin: 60px 0;
    overflow: hidden;
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-start;
  }
}
